The flashcards below were created by user
djon
on FreezingBlue Flashcards.
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What does BLOB stand for?
Binary Large Object
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What data type do we store BLOBS in SQL Server?
img
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What data type does MS suggest we store a BLOB in visual studio?
file table
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What data type is a blob stored in C#?
byte array
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What 2 new WPF controls were introduced
- rich text box
- dialog control
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What is WCF?
- Windows Communication Foundation
- Communication between executables
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What does A.B.C. stand for?
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When is Binding used?
With the BLOB
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When is the contract used?
Interface
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What 2 attributes did we use in EmployeeDataService and explain what they do.
- [ServiceContract]
- provides meta data for run time environment
- put on class level
- [OperationContract]
- put on method level
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What is an attribute?
useful peices of meta data used at run time to do something.
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What is the WCF Host?
Used to run the server
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When adding a WCF Service to a WCF Service Library project, what 2 files get created by VS?
- Interface
- implementation class of the interface
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Which files get updated/created when adding a WCF Service to a WCF Service Library project?
- Implementation class file
- interface
- App.config
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What datatype was the IsTech column given?
boolean
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What is the SerializedEmployee classified as?
ComplexType
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What does WCF do to Lists that are sent over the network?
converts into array
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When adding a Service Reference what file is created/updated on the client?
app.Config
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Difference between app.config and App.config
- App = server side
- app = client side
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How does the CallDataService differ from the EmployeeDataService when tracking Optimistic Concurrency?
They don't
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If a change is made to the DataService, what should you do in the user object's project to pick up the change? What is another option
- right click service and update
- delete service and app.config and re add them
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Which Object Oriented principle does a user control provide and example of?
encapsulation
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What is the assembly type produced when creating a user control?
.dll
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Where does the control show up in the VS ide?
toolbox
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How does our EmployeeChooser control notify its parent that an employee has been selected?
raise an event
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What is the data type for the date fields in the Calls table?
smalldatetime
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What is the data type for the equivalent field in C#?
DateTime
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What do you have to do to a date field in C# when working with it?
has to have a valid date value
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What happens when you try and store a date field with DateTime.MinValue in the database?
conversion error
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What do you need to do to load the Problems combo box?
content and tag
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How do you retrieve the correct problem id from the combo box once the user has selected one?
tag
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How does a user close a call?
check box
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How many .dll's are in Case Study 2? What are they?
- 3
- Data Services
- UserObjects
- UserControl
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How many .dll's go on the server?
2
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What are the 3 complex type contracts?
- [DataContract]
- [EdmxComplexType]
- [Serializable]
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